Thunder is good at surprise operations, especially night battles are more famous, the 20th Division took the retreat of troops as a threat price, and finally got some intelligence and information related to Thunder from the Japanese army base camp. After the defeat of the sniper duel during the day, the position of the 20th Division after night fell was heavily defended, and the position of the 6th Division connected to them was full of light and dark sentinels, and the patrol team serving as night guard accounted for almost 20% of their total strength.

In the face of such a tight defense and vigilance of the opponent, the mercenaries who had sneaked to the edge of the opponent's outer defense line had to wait patiently for the opportunity and transmit the actual situation back to Zhao Zhi's headquarters by walkie-talkie. "The action was carried out as originally planned, and if there is a deviation in the actual situation, the action can be delayed by an hour." In the face of the Japanese army's strict defense, Zhao Zhi did not have a good way, the night wind had already appeared, if this great opportunity was lost, Tang Lei's success probability of carrying out the smoke attack would be much smaller.

Ma Tianbing's night vision device has been a green figure shaking, it seems that the Japanese army is not going to sleep tonight, and the same as the companions lying next to him, Ma Tianbing's backpack also contains a cylindrical small incendiary bomb with a tail fin, their task of the 300 people is to put 240 small incendiary bombs into the Japanese defense line with 60 mortars three hours after nightfall. The place where Ma Tianbing lay was less than 50 meters away from where the Japanese patrols were patrolling back and forth, and behind him lay the mercenaries of the same group.

The entire Japanese defense line was filled with bonfires, and the Japanese patrols patrolling back and forth were also flashlights, which was a threat to the mercenaries who approached and lurked. Fortunately, God helped, and the mercenaries were in the upwind position tonight, so Ma Tianbing temporarily had a new task, and before his companions were ready to fire incendiary grenades, he needed to use the smoke to deal with the Japanese patrols who were in the way.

There are two kinds of individual smoke bombs of Thunder, one is the single hand smoke bomb, which is the regular configuration weapon of the mercenaries, this kind of hand smoke bomb is generally used to deal with indoor melee combat, and the second is the smoke canister, which is now carried by Ma Tianbing. Although the size of this smoke canister is large, it can cover an area of almost 100 square meters, and with the help of the wind, this colorless and odorless smoke can even spread along the wind to a range of 300 meters.

Counting 300 meters inward from the outer edge of the Japanese defense line, it was almost to the position of their second line of defense, as long as the smoke released by Ma Tianbing could successfully solve the outer patrols of the Japanese army, the incendiary bombs fired by them using mortars could smoothly fall to the position of the second or even third line of defense of the Japanese army. The sound of fingers tapping on the microphone sounded on the walkie-talkie, a code that had been scheduled early in the morning, indicating that the time had come for the attack to begin.

After putting on a gas mask for himself, Ma Tianbing pulled open the pull ring of a smoke canister, and then carefully placed the smoke canister in the open space in front of him. Twisting his body like a snake, Ma Tianbing crawled to his right with two smoke canisters in his hand, to deal with the Japanese defense line in such a large area, of course, it was not enough to rely on only three smoke canisters. In the half hour before the attack began, at least 20 mercenaries like Ma Tianbing, who secretly released the smoke, were operating on the periphery of the Japanese defense line.

"You can't waste those smoke cans for nothing." 20 minutes after the smoke was released, 300 mercenaries lurking in the dark night with mortars and incendiary bombs touched into the Japanese defense line, and after setting up the gun position, almost all the mercenaries drew their short knives and turned their eyes to the Japanese soldiers who were inhaled in the smoke and unconscious on the defense line. In order to achieve the final victory, the mercenaries who infiltrated the Japanese defense line took these unconscious Japanese soldiers as hors d'oeuvres before the attack time came.

"What a nice wind, if we have enough smoke, I can take down all these damn Japanese soldiers in one night." Tang Lei, who was standing on the hillside with Zhao Zhi, looked annoyed, and wondered why he didn't bring more smoke canisters when he came. Tang Lei has been in charge of the Qingfeng army for more than 2 years, and the tempering of 2 years has made Tang Lei's temperament more and more cold, only when he is with Zhao Zhi, Tang Lei's words will be slightly more. Even when Mandalay and Zhang Lan were together, Tang Lei often had a cold face, and he didn't know how many times he was secretly scolded by Mo Lun.

"Smoke is only one of our means against the enemy, if it were not for the retreat of the Japanese army on the opposite side and the night wind tonight, our smoke attack would not have worked, if it were not for the use of fighter planes to carry out shock bombing and attack on all fronts of the Japanese army, I would still prefer to use poison gas as the main means of attack." Zhao Zhi on the battlefield is definitely not a benevolent person, the purpose of fighting is to win, killing is the guarantee of victory, when facing the enemy, Zhao Zhi only thinks of achieving the final victory, as for what means to use, it doesn't matter at all.

"Boom" "Boom" "Boom" When Zhao Zhi and Tang Lei were chatting on the hillside, dozens of fireballs suddenly appeared on the Japanese defense line, and in just a blink of an eye, the 300 mercenaries who infiltrated the Japanese defense line shot out all the incendiary bombs they had brought with them, and the more than 200 fires that broke out on the Japanese position became more and more prosperous along the wind. The Japanese troops who were suddenly bombarded were naturally in chaos, and before they could return fire at the retreating mercenaries, the infiltrating roar of the fighters as they dived already sounded in the air.

The power of the powerful incendiary bomb is not comparable to the small incendiary bomb matched with the mortar, and the small incendiary bomb matched with the mortar is purely an ignition weapon that can only burn, and the powerful incendiary bomb that can be equipped with the fighter unit can also produce a high temperature of up to several thousand degrees while firing, and all objects within the flame range will be covered by the high-temperature flame, and the high temperature can even deform the weapons and ammunition.

"Huh" The Japanese positions were full of scorching flames, and the Japanese soldiers who were hiding in the trenches and bunkers tried in vain to avoid the flames, but unfortunately they were all wrong, and they were all very wrong, because the high-temperature flames formed after the explosion of the powerful incendiary bombs would swallow up all the oxygen within the burning range, and they hid in the bunkers as if they were sitting in a steamer. The air in the bunker and the moisture in their bodies are drained by the flames, and the only thing that awaits them is death, suffocation, or respiratory failure.

"Up, up, up, rush up and kill all the Japanese." The perimeter of the Japanese defense line lit up with countless flashlights, which were mercenaries who were directing the attack direction of the mixed troops. The bombing position of the Thunder planes was 500 to 1,000 meters inward from the outer edge of the Japanese defensive line, and the 500-meter inward section of the outer edge of the defensive line still had to be broken by mixed troops. "Boom", "Boom", "Boom" The hundreds of mortars concentrated on the periphery of the Japanese defense line began to exert their might, and while the Japanese army was now in a panic, the mercenaries smashed shells into the Japanese positions as much as possible, opening up an assault route for the mixed troops.

The mixed troops who raided all the way to the Kurume area were no longer fighting for money, and the murderous character that had been hidden in their bodies had been awakened by Zhao Zhi, and now they had become messengers from hell, and their mission was to kill and kill more Japanese. The Japanese positions were armed with ammunition, and the mixed soldiers who rushed into the Japanese lines could even find their weapons by bending down, but they still thought that the long knives in their hands were better because they were more bloody.

Fighter planes took turns bombing the Japanese positions in batches, and the bombing area had already begun to extend backwards from a range of 500 to 1,000 meters, and there was no need to carry out incendiary bombardment on the Japanese positions on the front line, they only needed to make a few breakthroughs in the Japanese positions, and the most fighter units participated in the war were to cause psychological panic to the Japanese army, rather than relying on incendiary bombs to defeat the Japanese army. The mixed soldiers in black howled and collided with the Japanese soldiers, and the long knives in their hands became a tool to kill them, relying on the advantage of numbers, more and more Japanese soldiers were cut to the ground like a tide of mixed soldiers chopping melons and vegetables.

The Japanese soldiers who emerged from the trenches and bunkers were not so timid as to turn and flee, and for the sake of their pledge of allegiance to the emperor, they put up a desperate resistance with their weapons in hand, but unfortunately their numbers were too small. As more and more mixed soldiers poured into their positions, a Japanese soldier would often face a siege of more than five mixed soldiers, and before they could fire the next bullet in the chamber, a long knife would slash at them, and a sloppy Japanese soldier would often cut two of the long knives to the ground by the subsequent long knives.

"Turn the machine gun over, since these bastards can keep shrinking in the trenches without raising their heads, then Lao Tzu will fulfill them." The chaotic attack could not have been smooth sailing, and one of the mixed units of the 20th Assault Division encountered stubborn resistance, with more than 300 mixed soldiers killed with firearms by Japanese soldiers hiding in trenches. It is not uncommon for people to die in battle, but it is strange that the group of Japanese soldiers has four light and heavy machine guns, and if they are not eliminated, the thousands of mixed soldiers who are suppressed here will not be able to carry out a surprise attack smoothly.

"Dada." The three Browning large-caliber heavy machine guns arranged on the two flanks opened fire one after another, and the mercenaries who operated the heavy machine guns were only trying to suppress the Japanese army, and it didn't matter whether they could kill them or not, because the mixed soldiers who were suppressed by the opponent's machine guns had already begun to continue to charge forward. The Japanese machine gunners would not be stupid enough to shoot at the Browning heavy machine guns in the hands of the mercenaries, their Type 92 heavy machine guns are considered heavy firepower, but if compared with the Browning large-caliber heavy machine guns, they are inferior in terms of rate of fire and bullet caliber.